Dtc U0100 Communication Stop From Ecm To Distance Control Ecu, Vsc

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
Cruise Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC (CAN COMMUNICATION SYSTEM)

DTC U0100 Communication Stop from ECM to Distance Control ECU, VSC

DTC U0122 Lost Communication with Vehicle Dynamics Control Module

DTC U0123 Lost Communication with Yaw Rate Sensor Module

DTC U0126 Lost Communication with Steering Angle Sensor Module

DTC U1101 Lost Communication with Distance Control ECU


DESCRIPTION

This DTC is output when a communication malfunction occurs between the sensors and ECUs.

DTC Code
DTC Detection Condition
Trouble Area
U0100
The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and communication from the ECM to the distance control ECU stops.
  1. Distance control ECU
  2. CAN communication system
  3. ECM
U0122
The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and communication from the master cylinder solenoid (skid control ECU) to the ECM stops.
  1. Master cylinder solenoid (skid control ECU)
  2. CAN communication system
  3. ECM
U0123
While cruise control is in operation (vehicle-to-vehicle distance control mode), the data sent from the yaw rate sensor to the distance control ECU is abnormal.
  1. Distance control ECU
  2. Yaw rate sensor
  3. CAN communication system
  4. ECM
U0126
While cruise control is in operation (vehicle-to-vehicle distance control mode), the data sent from the steering angle sensor to the distance control ECU is abnormal.
  1. Distance control ECU
  2. Steering angle sensor
  3. CAN communication system
  4. ECM
U1101
The vehicle speed is 50 km/h (30 mph) or more with the cruise control main switch on (vehicle-to-vehicle distance control mode) and communication from the distance control ECU to the ECM stops.
  1. Distance control ECU
  2. CAN communication system
  3. ECM

INSPECTION PROCEDURE

1.CHECK DTC (CAN COMMUNICATION SYSTEM)

  1. Use the intelligent tester to check if the CAN communication system is functioning normally (Click here for LHD, Click here for RHD).

    Result
    Result
    		Proceed to
    OK
    (CAN DTC is not output)
    		A
    NG
    (for LHD)
    		B
    NG
    (for RHD)
    		C



B
GO TO CAN COMMUNICATION SYSTEM (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (Click here)
A

USE SIMULATION METHOD TO CHECK (Click here)